CAJ | 학술논문

介绍了短电弧机床数控脉冲调频电源的设计和研制，提出采用两级调制实现电源输出参数（幅值、频率、占空比）的连续可调，并分别阐述了电源主回路、控制系统、保护系统的设计。电源以DC/DC全桥逆变作为一级调制实现输出脉冲幅值的可调，并联斩波电路作为二级调制实现输出脉冲频率和占空比的可调。实验结果证明电源运行可靠、输出特性良好、抗干扰能力强。
개소료단전호궤상수공맥충조빈전원적설계화연제，제출채용량급조제실현전원수출삼수（폭치、빈솔、점공비）적련속가조，병분별천술료전원주회로、공제계통、보호계통적설계。전원이DC/DC전교역변작위일급조제실현수출맥충폭치적가조，병련참파전로작위이급조제실현수출맥충빈솔화점공비적가조。실험결과증명전원운행가고、수출특성량호、항간우능력강。
This paper introduced the design and development of the numerical control pulse power supply system for short electric arc machine tool ,and put forward two-stage modulation to realize the continuous adjustable for pulse power output parameters such as amplitude ,frequency ,duty ratio .The paper elaborated the design of the main circuit ,control system and protection system .The power supply adopts full bridge inverter as the first modulation ,multiphase multiple chopper circuit as the second modulation ,with the single chip computer and UC3879 to achieve control part .The test results demonstrate the power supply is of reliable operation , high-quality output and strong anti-interference ability .